EP1017356B1 - Produit antisudorifique sous forme solide a faible residu - Google Patents

Produit antisudorifique sous forme solide a faible residu Download PDF

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Publication number
EP1017356B1
EP1017356B1 EP98948885A EP98948885A EP1017356B1 EP 1017356 B1 EP1017356 B1 EP 1017356B1 EP 98948885 A EP98948885 A EP 98948885A EP 98948885 A EP98948885 A EP 98948885A EP 1017356 B1 EP1017356 B1 EP 1017356B1
Authority
EP
European Patent Office
Prior art keywords
composition
mixture
castor oil
paraffin wax
hydrogenated castor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP98948885A
Other languages
German (de)
English (en)
Other versions
EP1017356A2 (fr
Inventor
James Michael-Helene Curtis Inc. Bianchi
Eugenia Villareal Convenido
Jeremy Edward-Helene Curtis Inc. Noe
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Unilever PLC
Unilever NV
Original Assignee
Unilever PLC
Unilever NV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Publication of EP1017356A2 publication Critical patent/EP1017356A2/fr
Application granted granted Critical
Publication of EP1017356B1 publication Critical patent/EP1017356B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q15/00—Anti-perspirants or body deodorants
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/31—Hydrocarbons
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
    • A61K8/39—Derivatives containing from 2 to 10 oxyalkylene groups
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/58—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing atoms other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur or phosphorus
    • A61K8/585—Organosilicon compounds
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/92—Oils, fats or waxes; Derivatives thereof, e.g. hydrogenation products thereof
    • A61K8/922—Oils, fats or waxes; Derivatives thereof, e.g. hydrogenation products thereof of vegetable origin
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
    • A61K2800/20—Chemical, physico-chemical or functional or structural properties of the composition as a whole
    • A61K2800/30—Characterized by the absence of a particular group of ingredients
    • A61K2800/31—Anhydrous

Definitions

  • the present invention relates to antiperspirant sticks, substantially free of water and long chain fatty alcohols, which provide the user with excellent antiperspirant efficacy, reduced residue when the composition is first applied to the skin, reduced residue after dry down, high temperature stability, and excellent cosmetics and aesthetics.
  • Emulsion sticks contain a solution of the antiperspirant active incorporated in the stick via an emulsion. Although emulsion sticks may be desirable in certain respects, they tend to be unstable, have poor aesthetics and leave a visible residue on the skin after use.
  • Suspensoid sticks contain the powdered antiperspirant active suspended in the stick without the use of water or an emulsion. While suspensoids tend to be stable, they may be brittle and hard and more importantly, they tend to leave an unsightly white residue chalky residue after application.
  • the present invention provides an excellent antiperspirant composition which does not leave a chalky white residue upon application.
  • the excellent antiperspirant compositions of the invention are often in the form of suspensoid sticks.
  • Patents and patent documents related to this field of invention are as follows: USP 3,255,082; Barton et al; USP 3,986,203; Spitzer et al; USP 4,083, 956 Shelton; EPA 28,853 Beckmeyer et al; USP 4,425,328, Nabial et al; USP 4,265,878, Keil; USP 4,229,432, Geria; USP 4,724,139, Palinczar USP 4,985,238 Tanner et; and USP 5,486,347, Callaghan et al.
  • EP-A-295070 discloses antiperspirant compositions essentially containing a polyhydric alcohol, which in practice solubilises the antiperspirant, whereas in the present invention the antiperspirant is in particulate form.
  • EP-A-388110 discloses creams which are thickened with an inorganic material, namely clay together with an essential additional constituent, an activator for the clay.
  • WO-97/15270 discloses a cosmetic product containing essentially a dispersed particulate alkali metal or ammonium bicarbonate.
  • WO-97/16162 discloses an antiperspirant cream which is structured using a silicon wax of specified formula. None of EP-A-295070 EP-A-388110 WO-97/15270 or WO-97/16162 disclose the preparation of compositions structured with invention combination of wax structurants within the specified ratio range.
  • the present invention is directed to a low residue antiperspirant composition substantially free of water and long chain fatty alcohols which comprises:
  • the present invention is also directed to a method for preventing and controlling perspiration wetness in humans comprising the application to the underarm area of an effective amount of the composition as above.
  • % means weight %, unless otherwise specified.
  • the present invention is directed to a low residue antiperspirant composition substantially free of water and long chain fatty alcohols which comprises:
  • the present invention is also directed to a composition as above wherein the ratio of paraffin wax to hydrogenated castor oil to is from about 4 to 1 to about 1 to 1.
  • the present invention is also directed to a composition as above wherein the ratio of paraffin wax to hydrogenated castor oil to is from about 4 to 1 to about 1 to 1, and particularly from about 2 to 1 to about 1 to 1.
  • the present invention is also directed to a composition as above wherein the volatile silicon is present in a range of about 35% to about 45%.
  • the present invention is also directed to a composition as above wherein the particulate antiperspirant active is present in a range of about 20% to about 25%
  • the present invention is also directed to a method for preventing and controlling perspiration wetness in humans comprising the application to the underarm area of an effective amount of the composition as above.
  • the present invention is also directed to process for preparing antiperspirant compositions of the invention.
  • branched chain hydrocarbons useful in the present invention are branched non-volatile aliphatic waxes.
  • Paraffin is a solid mixture of hydrocarbons obtained from petroleum characterized by relatively large crystals.
  • the preferred branched hydrocarbon used in the compositions of the invention is paraffin.
  • paraffin Wax S.P. 173 sold by Strahl & Pitsch, Inc. P.O. Box 1098 West chairs, NY 11704 (516) 587-9000
  • the present compositions contain from about 5% to about 30% by weight of a particulate antiperspirant material. These weight percentages are calculated on an anhydrous metal salt basis (exclusive of glycine, the salts of glycine, or other complexing agents).
  • the particulate antiperspirant material preferably has particle sizes ranging from about 1 to about 100 microns, more preferably from about 1 to about 50 microns. They may be in impalpable or microscopic in form and preferably have a high bulk density (e.g. greater than about 0.7 g/cm3) Such materials include, for example, many aluminum or zirconium astringent salts or complexes and are well known in the art.
  • Any aluminum astringent antiperspirant salt or aluminum and/or zirconium astringent complex in particulate form can be employed herein.
  • Salts useful as astringent antiperspirant salts or as components of astringent complexes include aluminum halides, aluminum hydroxyhalides, zirconyl oxy halides, zirconyl hydroxyhalides and mixtures of these salt materials.
  • Aluminum salts of this type include aluminum chloride and the aluminum hydroxy halides having the general formula Al 2 (OH) x Q y XH 2 O where Q is chlorine, bromine, or iodine; x is from about 2 to about 5, and x+y is about 6 and x and y do not need to be integers and where X is from about 1 to about 6.
  • Aluminum salts of this type can be prepared in the manner described more fully in USP 3,887,692 to Gilman, USP 3,904,741 Jones and Rubino.
  • zirconium salts which are useful in the present invention include both zirconium oxy salts and zirconium hydroxyl salts, also referred to as zirconyl hydroxy salts. These compounds may be represented by the following general empirical formula: ZrO(OH) 2-nz B z wherein z may vary from about 0.9 to about 2 and need not be an integer, n is the valence of B, 2-nz is greater than or equal to 0, and b may be selected from the group consisting of halides, nitrate, sulfamate, sulfate, and mixtures thereof. Although only zirconium and aluminum compounds are exemplified in the specification, it will be understood that other metals such as the Group IV B metals, including hafnium could be used in the present invention.
  • the above formula is greatly simplified and is intended to represent and include compounds having coordinated and/or bound water in various quantities as well as polymers, mixtures and complexes of the above.
  • the zirconium hydroxy salts actually represent a range of compounds having various amounts of the hydroxy group, varying from about 1.1 to only slightly greater than 0 groups per molecule.
  • antiperspirant complexes using the above antiperspirant salts are known in the art.
  • 3,792,068 Luedders et al discloses complexes of aluminum, zirconium and amino acids such as glycines.
  • Complexes such as those disclosed in Luedders and other similar complexes are commonly known as ZAG( OR Zag).
  • ZAG complexes are chemically analyzable for the presence of aluminum, activated ZAG compounds and chlorine.
  • ZAG complexes useful herein are identified by the specification of both the molar ratio of aluminum to zirconium (the Al;Zr ratio) and the molar ratio of total metal to chlorine (metal:C1) ZAG complexes useful herein have an Al:Zr ratio of from about 1.67 to about 12.5 and a metal:Cl ratio of about 0.73 to about 1.93.
  • Activated ZAG compounds may be employed as the particulate antiperspirant active in the compositions of the present invention.
  • Activated ZAG compounds may be prepared by heating an aqueous solution containing an aluminum chlorhydroxide component and mixing it with a zirconium hydroxy chloride component.
  • Volatile silicones are known for use in deodorant sticks.
  • the volatile silicone component is preferably either a cyclic or a linear polydimethlysiloxane and is present at a level of from about 30 to about 50%, preferably from about 35% to about 45%.
  • the volatile silicones are more fully described in USP 4,985,238.
  • Hydrogenated castor oil is the end product of the controlled hydrogenation of castor oil and is described on page 315 of the International Cosmetic Ingredient Dictionary 5th ed., 1993.
  • Emollients suitable for use in the compositions of the present invention include a nonvolatile silicone oil, a high molecular weight polypol, an oil-surfactant, an aromatic ester, an aliphatic ester, and similar organic compounds.
  • the anhydrous, topically-effective compositions of the present invention also can include other optional ingredients that are conventionally included in topical cosmetic and medicinal compositions.
  • fragrances can be incorporated into the anhydrous, topically-effective composition in an amount of from 0% to about 5% based on the total weight of the composition.
  • the composition of the present invention when applied to skin, therefore fixes a substantive fragrance film on the skin that resists moisture, but that can be removed by washing.
  • Other optional ingredients that can be included in the anhydrous composition of the present invention include, but are not limited to, drying agents, like talc or DRY FLO (aluminum starch octenylsuccinate); preservatives; and dyes.
  • Such optional ingredients are present in a composition of the present invention in an amount of about 10% or less by weight.
  • an organoclay can be included in a composition of the present invention as an additional suspending agent in an amount of up to 20% by weight of the composition.
  • An organoclay is especially helpful as an anticaking agent to maintain a particulate topically-effective compound homogeneously dispersed throughout the composition.
  • An exemplary organoclay is a quaternized three-layer clay exfoliated with a polar solvent, like a quaternized montmorillonite clay exfoliated with propylene carbonate.
  • compositions of the invention are prepared by combining all of the ingredients except the antiperspirant active, the fragrance (if present), and the talc (if present).
  • the resulting mixture is heated with stirring at a temperature of from about 165F (74°C) to about 185F (85°C), until all of the waxes are completely melted or until all particulates are well-dispersed.
  • the antiperspirant active, and the talc (if present) are added to the molten wax at any temperature between about 165F (74°C) to about 185F (85°C).
  • the fragrance (if present) is added at about 165F (74°C).
  • the mixture is then filled into cannisters at 165F (74°C), or it is cooled to a temperature in the range of about 145F (63°C) to about 165P (74°C), and then filled into cannisters. It is preferred to fill the cannisters when the mixture is at 165F (74°C). In the cannisters, the compositions further cool to room temperature and harden.
  • compositions of the present invention are excellent antiperspirant compositions which do not leave a chalky white residue upon application. This can be demonstrated by applying compositions of the present invention to a dark substrate and instrumentally measuring the intensity of any whiteness that results.
  • compositions of the invention will range in hardness from about 7.0 to about 14.0 mm as shown by the above mentioned needle penetration test. Products outside this range will typically generate low consumer acceptance ratings.
  • the instrumental lightness measurements using a chromometere show the Composition 1 residue to be significantly whiter than that of Composition 2 one minute after application on gray sandpaper. After two hours drying at room temperature, the residue from Composition 1 is whiter than after application, while the Compositions 2 residue is less white than after application and is not significantly different from the sandpaper. Visual observation of the treated sandpaper indicates that Composition 2 is very clear, while the Composition 1 residue is very white.
  • the surface of the sticks were cut with a knife to yield a flat surface for application.
  • the sticks were applied by hand, suing an even pressue, onto gray 1200 grit sandpaper (Grainder).
  • Each application consisted of 4 strokes covering an area of 2.5 x 20 cm (50cm2). Three duplicate applications of each product were made.
  • the Minolta Chromametere was set to read in the L*a*b* measuring mode and was used to measure the colour of the residue from the formulation on the sandpaper.
  • the L* value a measure of the lightness (whiteness)
  • the stick residue on the sandpaper was allowed to dry for two hours at room temperature.
  • the L* value was again acquired on the five sites in each application area, yielding fifteen measurements for each formulation.
  • a higher L* value indicates a lighter (whiter) formulation on the sandpaper substrate.
  • Results indicate that the residue from Composition1 is whiter than that of Composition 2.
  • the results of the Scheffe test show that this difference is significant at the 95% confidence level. This statistical analysis, at the 95% confidence level, shows that the compositions 2 residue is whiter than the sandpaper at this one minute time point.
  • the residue from Compositionl is very much whiter than that of Composition 2.
  • the Composition 2 residue is less white after drying than it was 1 minute after application, and the results of the Scheffe test, at the 95% confidence level, show that this residue is not significantly different in whiteness from the sandpaper at this 2 hour point time.
  • Stearyl Alcohol Composition 1 Non-Stearyl Alcohol Compositions: 2 Wt.% Wt% Cyclomethicone 46.00 Cyclomethicone 41.3 Stearly Alcohol 15.00 Paraffin Wax 16.0 Castor Wax 3.00 Castor Wax 5.98 Hydrogenated Veg Oil 1.50 PEG-8 Distearate 4.50 Octyl Isononanoate 6.00 PPG-14 Butyl Ether 10.4 Glyceryl Stearate & PEG-100 Stearate 1.00 Silicone Wax 1642 1.00 Talc 3.50 AZG-370 20.0 AZG 370 22.00 Fragrance 0.75 Fragrance 2.00
  • Compositions 3 and 4 are as follows: Composition Composition 3 Composition 4 Cyclomethicone 41.32 41.32 Stearyl Alcohol 22.03 Paraffin Wax 16.05 Castor Wax 5.98 PEG-8 Distearate 4.50 4.50 SF-1642 Wax 1.50 1.50 PPG-14 Butyl Ether 10.40 10.40 AZG-370 20.00 20.00
  • a higher L* indicates a whiter forumlation residue on the sandpaper substrate.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
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  • Veterinary Medicine (AREA)
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  • Epidemiology (AREA)
  • Emergency Medicine (AREA)
  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Cosmetics (AREA)

Claims (9)

  1. Composition antisudorifique à faible résidus ne contenant substantiellement pas d'eau ni d'alcools gras à longue chaíne, comprenant :
    (a) d'environ 30 % à environ 50 % d'une silicone volatile ;
    (b) d'environ 5 % à environ 30 % d'un actif antisudorifique particulaire ;
    (c) d'environ 2 % à environ 12 % d'huile de castor hydrogénée ;
    (d) d'environ 8 % à environ 28 % de cire de paraffine ; et
    (e) d'environ 10 % à environ 25 % d'un émollient
    caractérisée en ce que le ratio entre la cire de paraffine est l'huile de castor hydrogénée va d'environ 6 pour 1 à environ 0,85 pour 1.
  2. Composition selon la revendication 1, caractérisée en ce que le ratio entre la cire de paraffine et l'huile de castor hydrogénée va d'environ 4 pour 1 à environ 1 pour 1.
  3. Composition selon l'une quelconque des revendications précédentes, caractérisée en ce que le ratio entre la cire de paraffine et l'huile de castor hydrogénée va d'environ 2 pour 1 à environ 1 pour 1.
  4. Composition selon la revendication 1, caractérisée en ce que la silicone volatile est présente dans une quantité comprise dans la gamme allant d'environ 35 % à environ 45 %.
  5. Composition selon l'une quelconque des revendications précédentes, caractérisée en ce que l'ingrédient actif antisudorifique est présent dans une quantité comprise dans la gamme allant d'environ 20 % à environ 25 %.
  6. Procédé de prévention et de contrôle de l'humidité due à la sudation chez les êtres humains, comprenant le fait d'appliquer au niveau de la zone se situant sous les bras une quantité efficace de la composition selon la revendication 1.
  7. Procédé de préparation d'une composition selon la revendication 1, comprenant les étapes consistant à :
    (1) combiner:
    (a) une silicone volatile ;
    (b) de l'huile de castor hydrogénée ;
    (c) de la cire de paraffine ; et
    (d) un émollient ;
    caractérisé en ce que le ratio entre la cire de paraffine et l'huile de castor hydrogénée est d'environ 6 pour 1 à environ 0,85 pour 1 ;
    (2) chauffer le mélange qui en résulte tout en le mélangeant à une température allant d'environ 74°C à environ 85°C jusqu'à ce que toutes les cires soient complètement fondues ou jusqu'à ce que tous les matériaux particulaires soient bien dispersés ;
    (3) ajouter un ingrédient actif antisudorifique ; et
    (4) placer le mélange dans des boítes métalliques à une température de 74°C ; ou refroidir le mélange à une température comprise dans la gamme allant d'environ 63°C à environ 74°C, le placer dans une boíte métallique ; et
    (5) laisser refroidir le mélange à température ambiante et le laisser durcir.
  8. Procédé selon la revendication 7, caractérisé en ce que le mélange dans le cadre de l'étape (4) est placé dans une boíte métallique lorsque le mélange est à une température d'environ 74°C.
  9. Procédé selon la revendication 7, caractérisé en ce que dans le cadre de l'étape (3), l'ingrédient actif antisudorifique est ajouté à la température de 85°C et dans lequel, dans le cadre de l'étape (3), on ajoute encore du talc à une température de 85°C.
EP98948885A 1997-09-26 1998-08-25 Produit antisudorifique sous forme solide a faible residu Expired - Lifetime EP1017356B1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US6011497P 1997-09-26 1997-09-26
US60114P 1997-09-26
US09/071,654 US6048518A (en) 1997-09-26 1998-05-01 Low residue solid antiperspirant
US71654 1998-05-01
PCT/EP1998/005497 WO1999016410A2 (fr) 1997-09-26 1998-08-25 Produit antisudorifique sous forme solide a faible residu

Publications (2)

Publication Number Publication Date
EP1017356A2 EP1017356A2 (fr) 2000-07-12
EP1017356B1 true EP1017356B1 (fr) 2002-07-24

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ID=26739581

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Application Number Title Priority Date Filing Date
EP98948885A Expired - Lifetime EP1017356B1 (fr) 1997-09-26 1998-08-25 Produit antisudorifique sous forme solide a faible residu

Country Status (13)

Country Link
US (1) US6048518A (fr)
EP (1) EP1017356B1 (fr)
JP (1) JP2001517687A (fr)
AR (1) AR017141A1 (fr)
AU (1) AU9534898A (fr)
BR (1) BR9812536A (fr)
CA (1) CA2303940A1 (fr)
CO (1) CO4970696A1 (fr)
DE (1) DE69806778T2 (fr)
ES (1) ES2178847T3 (fr)
HU (1) HUP0003677A3 (fr)
PL (1) PL339951A1 (fr)
WO (1) WO1999016410A2 (fr)

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US9554982B2 (en) 2012-09-14 2017-01-31 The Procter & Gamble Company Aerosol antiperspirant compositions, products and methods
US9579265B2 (en) 2014-03-13 2017-02-28 The Procter & Gamble Company Aerosol antiperspirant compositions, products and methods
US9662285B2 (en) 2014-03-13 2017-05-30 The Procter & Gamble Company Aerosol antiperspirant compositions, products and methods

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GB9521990D0 (en) * 1995-10-27 1996-01-03 Unilever Plc Underarm compositions
GB9625070D0 (en) * 1996-12-02 1997-01-22 Unilever Plc Cosmetic composition

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PL339951A1 (en) 2001-01-15
DE69806778T2 (de) 2003-03-06
WO1999016410A2 (fr) 1999-04-08
CA2303940A1 (fr) 1999-04-08
DE69806778D1 (de) 2002-08-29
US6048518A (en) 2000-04-11
AR017141A1 (es) 2001-08-22
EP1017356A2 (fr) 2000-07-12
HUP0003677A2 (hu) 2001-02-28
WO1999016410A3 (fr) 1999-06-17
AU9534898A (en) 1999-04-23
ES2178847T3 (es) 2003-01-01
BR9812536A (pt) 2000-07-25
CO4970696A1 (es) 2000-11-07
JP2001517687A (ja) 2001-10-09
HUP0003677A3 (en) 2003-02-28

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